Tracheal cannulas and stents
US5054483A · kind A · utility
53Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1990 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | May 22, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0253
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosure is made of an improvement in the T-shaped tracheal stents and in the tracheal cannulas of the prior art, permitting one to conveniently have a complete and unitary unit including a closure member affixed to the device of the invention. Unidirectional retention sleeves are also described, which may be used in conjunction with the cannulas and the stents of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.